3214820

Information

• Patent Grant
• 3214820

• References
• Source

• Patent Number

  3,214,820

• Date Filed

  Not available

• Date Issued

  Tuesday, November 2, 1965
  60 years ago

• CPC

  • B21B1/38 - for rolling sheets of limited length
  • B23K20/04 - by means of a rolling mill
  • B23K20/227 - with ferrous layer
  • B32B15/013 - one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
  • B32B15/08 - of synthetic resin
  • C21D8/0278 - involving a particular surface treatment
  • D21H19/04 - applied as foil
  • C21D8/0236 - Cold rolling
  • C21D2251/00 - Treating composite or clad material
  • Y10T29/302 - Clad or other composite foil or thin metal making

• US Classifications

  • 029 - Metal working